1109889744 has 40 divisors (see below), whose sum is σ = 3035877120. Its totient is φ = 348200448.

The previous prime is 1109889701. The next prime is 1109889757. The reversal of 1109889744 is 4479889011.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679264 + ... + 680895.

It is an arithmetic number, because the mean of its divisors is an integer number (75896928).

Almost surely, 2^1109889744 is an apocalyptic number.

It is an amenable number.

1109889744 is an abundant number, since it is smaller than the sum of its proper divisors (1925987376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1109889744 is a wasteful number, since it uses less digits than its factorization.

1109889744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360187 (or 1360181 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 1109889744 is about 33315.0077892832. The cubic root of 1109889744 is about 1035.3645223521.

The spelling of 1109889744 in words is "one billion, one hundred nine million, eight hundred eighty-nine thousand, seven hundred forty-four".